This number is linked to 407-476-9832.  Another poster on this forum used an Air Horn on them, and then got a call from 407 565 9999 to yell at them for using said Air Horn.  When I looked them up, I found this:
http://www.whycall.me/407-565-9999.html, which will tell you who they are.

Contact you phone provider to see if the calls can be blocked.  

If he's calling your cell put the number in your contacts list and assign it the ring tone "no ring".  That won't stop the calls but it will make them easy to ignore.

The person who keeps calling me from this number says he owns me and will keep calling me.   I call the number back and it is about some property for sale or rent near the Spectrum in Irvine California.  What the Hell is going on.  I told him to F%#king stop calling me.  He started calling me some pretty awful names.  What can be done about this? I guess the Ntl. do not call list is a joke.

Calls several times a week.

Florida 40-7-565-9999 is a criminal boiler room enterprise always sneaking ahead of the FTC who tries repeatedly close them down---it' s the game of whack a mole

Just keep calling, they use several different numbers and seem to come every few months

They call several times a day to jam one's phone line.  Finally one responded saying the were ALEC or something.  I told them to get lost and am forwarding all calls to the FTC.  Although they all belong in prison, maybe they can be jailed to give us all a little temporary relief from their harrassment. :(

Phony tele-marketer pretending to be a tax exempt orginazation.
There ought to be a law. Oh, yeah, there is.
Start enforcing this!

I answer, immediately say "Just a minute, please", lay the phone on the table and leave the room.  I heard one caller saying, "This isn't funny".  I thought it was a hoot!

The rotten no good people calling from this number about lowering interest rates on credit cards really irritate me.  I have tried to get them to remove me from their calling list, and they hang up before I can complete a sentence.

Good luck trying to trace this or any other scammers #. They are far ahead of technology then those agencies trying to stop them. Many of these scammers spoof their numbers making it almost impossible to trace the calls. Some call from outside of the US making them difficult to prosecute. My guess is it's going to be difficult to trace the numbers as well as prosecuting them. Unfortunately these crooks are pretty adept at not getting caught and staying one step ahead of the law. Make sure you google "spoofing" before you start and understand that a lot of the info you get on your caller ID from these callers are false and misleading.

same as all the above comments

Filed complaint:
http://www.fcc.gov/complaints

They only get a few thousand complaints out of millions of calls.  Everyone needs to complain every time or nothing will ever happen.

I do the same thing but it's doing no good since my "blocked number" list can handle a maximum of 12 numbers, and since they keep changing numbers, I'm out of luck. :(

Rang a few times and hung up before the machine answered.  No idea if it was a telemarketer or a debt collector.  My number has been on the DNC list from the beginning and I don't owe anyone anything.  CID just gave the number and 'Florida.'

I've done the compressed air horn myself when an middle eastern accent kept calling to say I owed for a cash advance, I've never taken.  ....it's funny for you...not so funny for the telemarketer.
Kudos for taking control....

Apopka is a NW suburb of Orlando...

Well, "Rachel from Card Holder Services" called again today.  All of our numbers are on the "do not call list" and it doesn't matter.  Sometimes "she" calls several times a day.  I have done everything to stop the calls including "pressing #2 to take our name off of their call list."  About a month ago I asked to speak to a supervisor.  Their call center in India spewed filth and swear words over the line at me.  I made a report to the FCC.  Got a form letter the other day.  Big deal, "Rachel" called a few minutes ago.  If our government wanted to stop these calls, they could do it in a heartbeat.  Why don't they?

This is one of 7 calls I've received from robots today. Yah, way to go on the DNC list, Congress. That worked out so well for us.

Do not call 810 987 2335   Thank you

Repeat calls Please stop if you can

about once a week this place calls me and it is not possible to hang up on them.  how do I stop it?

I have tried over and over to get this bunch to stop calling. I want you to burn them at the stake. I will bring the matches

The do not call reg. is a F%#KING joke

the "do not call" registry is just another way the federal government is wasting our children's, grandchildren's and great-grandchildren's future.  A drug company sold my daughter drugs that resulted in her death.  They have called me for over two years trying to sell her more.  They refuse to stop calling.  The people who run the "do not call" registry are a waste of good air.  They do nothing.  My senator does nothing to stop it.  Air horns don't stop it. Just don't answer the phone when they call.

suspect call

People, stop complaining that you're on the Do Not Call List but still getting calls from these people. If they are trying to collect a debt from you, that is not a telemarketing call. They may not be the original company that you owed the money to, but they're entitled to try to contact you if they bought the debt.

CID=FLORIDA.
I did not answer the call.
No message left.

"Cardholder Services" but caller ID says "Florida".  Press 3 to stop calls, press 1 to talk to someone about lower credit card rates.  I am on do not call list.  I pressed 1 to talk to someone, asked why they are calling me since I'm on DNC list.  They hang up on you every time.

Did not answer.